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Date: Thu, 20 Mar 2014 08:45:59 +0100
From: Stefan Hajnoczi <stefanha@gmail.com>
Message-ID: <20140320074559.GA28090@stefanha-thinkpad.redhat.com>
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Subject: Re: [Qemu-devel] VNC viewer displays nothing with -enable-kvm but
 works fine without -enable-kvm
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To: Le Tan <tamlokveer@gmail.com>
Cc: qemu-devel@nongnu.org

On Fri, Mar 14, 2014 at 04:02:58PM +0800, Le Tan wrote:
> Hi, I used qemu-kvm-1.2.0 before. I can run qemu with kvm well. Two days
> ago, I updated qemu to qemu-1.6.2, and start the qemu with the command:
> qemu-system-x86_64 -m 2048 -smp 4 -hda /home/tanle/study/new.img -nographic
> -vnc 162.105.146.118:2
> It works fine and slow. It is obviously not using the kvm to accelerate.
> Then I use the command:
> qemu-system-x86_64 -m 2048 -smp 4 -hda /home/tanle/study/new.img -nographic
> -vnc 162.105.146.118:2 -enable-kvm
> The VNC viewer can connect to the vm, but it is black and displays nothing.
> What is wrong here?

Please use the latest upstream QEMU release (1.7.0) or contact your
distro if you are using a packaged version of QEMU.

Stefan